Metro Operation Vibration Propagation Mechanism and Measures for Prevention and Control of Vibration and Noise
Buildings near metro lines are affected by train vibrations and noise,which can damage the public environment,reduce the quality of life for residents,and even endanger human health.This article delves into the propagation mechanism of metro operation vibration and states that the vibration source caused by the train exhibits a flowing and intermittent state.The impact of vehicle induced vibration on adjacent buildings is related to the height and structural system of the buildings;the vertical vibration response of the structure under vehicle induced vibration conditions is significantly greater than the horizontal vibration response.In terms of vibration reduction control at the vibration source,comparative tests were conducted on various trackbeds through experimental research,and the results showed that the vibration reduction effect of floating slab trackbeds was significant.In terms of controlling the propagation path of vibration,corresponding control measures have been proposed based on relevant theoretical research and engineering practice.In the aspect of vibration isolation and noise reduction measures of building structure,the vibration reduction effects and roles of rubber or disc spring vibration isolation supports and TMD are elaborated.
metro operationvibration propagation mechanismstructural vibration responsenoise prevention and control
万方数据
维普
